题意:给你n个房子的距离,问那个房子离别的房子的距离最近,并且输出与别的房子距离的总和 思路:排序一下,中间的房子离别房子距离必然是最少的. #include <iostream> #include<cstdio> #include<algorithm> #include<cmath> using namespace std; #define N 510 int house[N]; int main(int argc, char** argv) { int…

  Problem C: Vito's family  Background The world-known gangster Vito Deadstone is moving to New York. He has a very big family there, all of them living in Lamafia Avenue. Since he will visit all his relatives very often, he is trying to find a house…

题目大意:给出一些点,找到一个位置使这个位置到所有的点的距离的和最短. 很明显,排序,找中位数.关于中位数:有n个从小到大的数,k=(n+1)/2,若n为奇数,k为中位数,若n为偶数,k为中间那两个数中左侧的数.在c语言中,数组以0开始,中位数可以表示为k=(n-1)/2. #include <cstdio> #include <cstdlib> #include <algorithm> using namespace std; #define MAXN 500+10…

Yup!! The problem name reects your task; just add a set of numbers. But you may feel yourselvescondescended, to write a C/C++ program just to add a set of numbers. Such a problem will simplyquestion your erudition. So, lets add some avor of ingenuity…

We would like to place n rooks, 1 n 5000, on a n nboard subject to the following restrictions• The i-th rook can only be placed within the rectan-gle given by its left-upper corner (xli; yli) and its right-lower corner (xri; yri), where 1 i n, 1 xli…

这道题真是WA得我心力交瘁,好讨厌的感觉啊! 简直木有写题解的心情了 题意: n×n的棋盘里,放置n个车,使得任意两车不同行且不同列,且第i个车必须放在给定的第i个矩形范围内.输出一种方案,即每个车的坐标,无解的话则输出“IMPOSSIBLE” 行和列是独立的,所以可以分开处理,将二维的转化成了一维区间上的取点问题: 有一个长度为n的区间,还有n个小区间,求一种方案,在每个小区间的范围取一个点,是的大区间上每个单位1的区间里都有点. 开始写的贪心是错误的: 按区间的左端点从小到大排序,然后右端点…

题目链接: C - Grid of Lamps Time Limit:1000MSMemory Limit: 0KB 问题描述 We have a grid of lamps. Some of the lamps are on, while others are off. The luminosity of a row/column is the number of its lighted lamps. You are given a permutation of the luminositie…

  Product of digits  For a given non-negative integer number N , find the minimal natural Q such that the product of all digits of Q is equal N . Input The first line of input contains one positive integer number, which is the number of data sets. Ea…

Commando War There is a war and it doesn't look very promising for your country. Now it's time to act. You have a commando squad at your disposal and planning an ambush on an important enemy camp located nearby. You have N soldiers in your squad. In…

题目描写叙述开头一大堆屁话,我还细致看了半天..事实上就最后2句管用.意思就是给出n本书然后要分成k份,每份总页数的最大值要最小.问你分配方案,假设最小值同样情况下有多种分配方案,输出前面份数小的,就像字典序输出从小到大一样的意思. 这里用到贪心的方法,定义f(x)为真的条件是满足x为最大值使n本书分成k份,那么就是求x的最小值.怎样确定这个x就是用的二分法,x一定大于0小于全部值的合,不断的二分再推断是否成立,成立就取左半边,不成立说明太小了就取右半边,写的时候还是没有把二分法理解透彻,我还怕…